Fan attachment for lawn-swings.



LfiEHBAUER.

FAN ATTACHMENT FOR LAWN SWINGS. APPLICATION Fl-LED AUG.851917.

1,276,050. Q Pate11tedA11g.20,1918.

J Elmo/14M 11 6;: GEHBHUER'.

dawn,

m: mums PEYERS on. rnmumm. WASHINGIDN. n c.

LGEHBAUERQ FAN ATTACHMENT FOR LAWN- SWINGS.

APPLTCATION FILED Aue.8.1917.

1,276,050. Patented Aug. 20, 1918.

2 SHEETS-SHEET 2.

18 I gmmutoz JOHN GEHBHUER.

I a M 1 Chung in: mmms PETERS ca, PHOlO-LITNU-. wAsnmcmu. n. c,

wonn-ennewnn, or snipers, mssoum.

FAN-swimwear roe Lawn-swims.

"Specification f Letters Patent. Patented Aug, 20, 1918,

Application filed August a, 1917. Serial No. 185,110.

flballwhom itmay concern:

"Be it'known that I, JoHrrGEHBAonn, a citizen of the United States, residing at'St. Louis, in the countyof Louis City and State of Missouri, have invented certain new and useful Improvements in Fan Attachrnents for Lawn-Swings, of which the, 01-

lowing is a specification, jreitere'nce being had to the accompanying drawings.

This invention relates to swings, and particul'arly to 'affan' attachment for swings.

, The general object of the invention .isfto provide an attachment offithis character whereby, while the swing is being operated, the user of the swing'will fbe fanned.

further object of this invention is to provide a deVice 'of this characterwhichinay be easily attached tolawn swings of ordinary construction.

A further fobj ect 18130 provide a construetion of this'character in which a rotatable fan is mounted upon the foot board of the swingandfpawls are mounted to engage withfa ratcheuwheel "carried-by 1 the 'foot board',the"pawls being mounted upon the frame of the swingso that as the body of the swing oscillates, thepawls will alter nately engage with the ratchet "wheel to therebyrotate theian. L i Other objects will appear in the course of; the following description.

Myinventionisillustrated in f the accompanying .drawinga wherein Figure 1 is aside elevation of a lawn swing with my attachment' applied thereto 5 Fig.2is a'sectional view on the line 22 of Fig. l looking downward;

Fig. 3 is a perspective view ofthe attach ment w th he p tsse m d;

V Fig. 11 3 vertical sectional view through the" attachment, aportibn ofthe foot board,

Fig." 5 I is a fragmentary top plan view of shaft 17 andfits pawl and "showing in dotte d lines a portion of the ratchet wheel. {Referring to these drawingsfi't will'bese'en that I have illustrated an ordinary form of'lawn swing coiiipris'ing' a'base 10 and upwardly extending uprights 11 to "which are pivotal'ly connected the depending oscillatingjbars pr supports 12 carrying th -body of the swing. This b'o dy" is provided with the 'transversely*eiteruiing Tfootfb'oards 1 4: andfthe base 10 includes a transversely extending trace" or "cross piece '15.

"the priestess a a pie determined distance are thebearing memhers 16. Each of these bearing members ls flat on one side and is held to the cross iece 15 by screws. Each bearing member is provided with a longitudinally extending socket, the sockets facing toward each other. Rotatably mounted between these bearing members a shaft 17, which may be square 'incro'ss section for the greater portion of its length and is reduced at its 'ends as at 18, these reduced rounded ends fitting in the sockets and rotating therein. Attachedtotheshaft 17 are the oppositely directedpfawls 19 and 20, these pawls being otthe same character and preferably being formed in one piece withthe shaft '17, though not necessarily so. These pawls at their ends are eachprovided with a tooth 2l,each tooth being' be'veled up'onits outer face as at 22. All of these parts may be of any suitable material, but preferably are of iron or steel.

Disposed through an opening between the foot boards 14 is a rectangular block 23, to which 'is attached a plate 24. This plate rests upon the slats of the 'foot board and is held thereto by screws or in any other suitable manner. The upper face of the plate isprovided with a ball race concentric to the vertically extending passage 25 through said block or bushing. The lower face of the block is also provided with a ball race. Rotatably mounted in the passage 25 is a shaft section 26, which at one end is provided with thelaterallv extending flange 27, the'under face of which is also provided with a'ball race and disposed between this flange 27 andthe plate 2-4: are the ball bearing's 28 operating in the corresponding races. Theshaft section 26 extends below the block orbushing' 23 and thisprojecting end of the shaft section is square for a portion of its length and beyond this squared portion is circular in section and screw-threaded. Fitting uponthesquare portion of the shaft section 26 is a ratchet wheel 29,-*which is held in place by a nut 30 engaging-the screwthreads on the lower end of the shaft section 26. Antiiriction balls or other: anti-friction bearings 31 are disposed between the ratchet and the under fa'ce of the ratchet wheel, ad-

jacentits margin, 'is provided with a pluiiili y s ndi 1 Psi-wees ratch t h s 32, one face of each tooth being beveled and all the teeth being beveled in the same di-- rection. The opposite faces of the tooth are not exactly vertical, "but slightly inclined outward and downward. These teeth are adapted to be engaged by the detents or teeth 21 on the ends of the dogs or pawls 19.

The upper end of the shaft section 26 is formed with a socket and disposed in this square socket is a rod 33 of any desired length which is held in place by a set screw 34: passing through the flange 27. Carried upon this rod 33 in any suitable position is a rotatable fan comprising a central body 35 having radially extending stubs 36, the side faces of which are inclined to the horizontal and attached to these stubs are the fan blades 37 which are also inclined'to the horizontal.

The operation of this device will be obvious from the drawing. As the body 13 is f oscillated back and forth across the bar 15,

the teeth on the ratchet wheel 29 will alternately engage the pawls 19 and 20. Thus upon a movement of the body 13 with the ratchet wheel 29 in one direction, the pawl 19 will engage with the teeth andgive a rotation to the ratchet wheel and thus to the fan and upon a movement of the body 13 in the opposite direction, the pawl 20 will engage the teeth on that side and give a movement to the fan. Of course after the body has passed the cross bar 15 and the wheel is rotated, the tooth will disengage from the pawl and the body continue its swing the fan being rotated by the impulse given to it by the pawl. The same operation will occur upon the reverse oscillation of the body 13. Thus as the swing is operated and oscillates back and forth across the bar 15, the ratchet wheel will be given intermittent movement in the same direction. As the ratchet wheel is mounted upon ball bearings, the ratchet wheel will continue to rotate after it becomes disengaged from the pawls, so that a nearly continuous movement is given to the fan blades. The body of the fan may be adjustedupon the shaft section 33 to any desired extent. It will be seen that my device is very simple, that it may be readily applied to any common form of garden or lawn swing and that a rotation of the fan will 'cause a draft of air to be directed toward the user of the swing.

It is obvious also that by a slight modification of the mechanism, the fan might be mounted for rotation in a vertical plane instead of a horizontal plane and that many modifications in detail and arrangement of parts might be made, without departing from the spirit of the invention.

It will be noted that the pawls 19 and 20 extend upward and outward in a slightly divergent relation to each other, that is, at an obtuse angle to each other, and that there is sufficient rotation of the shaft 17 that when one pawl is thrown up in engagement with the teeth on the ratchet wheel, the other pawl is shifted downward out of engagement. Thus, for instance, in the movement of the swing from one extremity of its are to the other, one of the pawls will be depressed, which will throw up the other pawl into a position to engage with the ratchet teeth on that side of the ratchet wheel, and upon a reverse movement of the swing, the first named pawl is thrown up and the second named pawl thrown down. The bar or cross piece 15 limits the rotation of the shaft 17, but this shaft has just sufficient rotation to prevent one of the pawls engaging with the ratchet when the other pawl is engaged.

Having claim is 1. The combination with a lawn swing including a supporting frame and an oscillatable body, of a fan shaft mounted upon the body, a ratchet wheel mounted upon the fan shaft and supported by the body, and oppositely directed pawls mounted upon the base and engageable with said ratchet wheel as the body is oscillated past it to thereby cause an intermittent rotation of the ratchet wheel in one direction.

2. The combination with a lawn swing -in' cluding a base, standards extending upward from the base, and a body swingingly supported upon said standards, of a rock shaft mounted upon the base and having oppositely directed pawlshaving outwardly extending teeth at their ends, a ratchet wheel mounted upon the under face of the body and having radially directed teeth, a fan shaft mounted upon said body and engaged by the ratchet wheel, and a fan operated by said/shaft, the movement ofthe body in one direction acting to engage one pawl to shift it out of operative position and shift the other pawl into operative position to engage with the teeth on-that side of the ratchet wheel. I

described my invention, what I 3. The combination with a lawn swingineluding a base, standards mountedthereon, and a body swingingly supported upon the standards, of a cross bar on the base, bearing members mounted on the cross bar, a

rock shaft supported in said bearing meming and the shaft section, a ratchet wheel carried upon the lower end of the shaft section and havingradially directedteeth, all of the teeth on one face being inclined and being disposed to operatively engage said pawls alternately as the body is swung past the first named shaft, a fan shaft extending upward from said shaft section, and fan blades operatively connected to said last named fan shaft.

4t. The combination with a lawn swing including a base, standards mounted thereon, and a body swingingly supported upon the standards, of a cross bar on the base, bearing members mounted on the cross bar, a rock shaft supported in said bearing members and having laterally, upwardly inclined pawls, each formed with an upwardly extending tooth at its outer end, the outer end face of the tooth being beveled, a bushing extending through and mounted upon the bottom of the body, a shaft section pass ing through said bushing and rotating therein, anti-friction bearings between the bushing and the shaft section, a ratchet wheel carried upon the lower end of the shaft section and havingradially directed teeth, all of the teeth on one face being inclined and being disposed to operatively engage said pawls alternately as the body is swung past the first named shaft, the upper end of the shaft section being provided with a socket, a fan shaft detachably engaged with said socket, and a fan having a body and radial blades disposed on said'fan shaft and vertically adjustable thereon, the blades of the fan being inclined to the plane of rotation of the fan.

5. The combination with a lawn swing including a base, standards mounted thereon, and a body swingingly supported upon the standards, of a cross bar on the base, bearing members mounted on the cross bar, a rock shaft supported in said bearing members and having laterally, upwardly inclined pawls, each formed with an upwardly extending tooth at its outer end, the outer end face of the tooth being beveled, a bushing extending through and mounted upon the bottom of the body, a shaft section passing through said bushing and rotating therein, said shaft section at its lower end having a square portion and a threaded portion, a ratchet wheel detachably mounted upon the square port-ion of the shaft section and having radially disposed teeth, all of the teeth having faces inclined in the same direction, a nut engaging the threaded portion of the shaft section and holding the ratchet wheel in place, ball bearings disposed between said bushing and the ratchet wheel, said shaft section at its upper end being flanged and formed with a socket, ball bearings disposed between said flanged portion of the shaft and the adjacent portion of the bushing, a fan shaft detachably mounted in the socket, and a fan mounted on the shaft and having radially extending blades.

6. An attachment for lawn swings com prising bearing members, a rock shaft rotatably supported therein and having oppositely directed p'awls disposed in divergent planes, each pawl having a tooth at its extremity, the outer end faces of the teeth be ing beveled, said bearing members being adapted to be attached to the base of a swing, a bushing adapted to be attached to the body of the swing, a fan shaft passing through said bushing and having a ratchet wheel detachably mounted on the lower end of the shaft, the wheel being provided with radially extending teeth having faces intersecting in the same direction and adapted to be engaged by the pawls, and a fan operatively mounted upon said shaft.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JOHN GEHBAUER.

Witnesses CHAs. F. CRQUTHER, Jr., M. A. WOHLSOHLAEGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

